These are thrips, not good. Eradicating thrips once they have established a presence is the only way to save your crops and prevent a new infestation. The best method (without using harsh chemicals) is to use potassium soap or neem oil. Pyrethrins and rotenone are also good options, although used sparingly as pyrethrins are also highly toxic to bees. Hopefully, I answered your question and remember Happy Growing and Free your mind one puff at a time.